Emerald Ash Borer Information Session – Tuesday, March 20th

Come to the Ewing Environmental Commission’s March meeting to learn from the experts about the Emerald Ash Borer (EAB) threat, how it will affect your property, options for managing your ash trees, and potential solutions.

The Emerald Ash borer has been found in Ewing Township.  (See the Rutgers  EAB Rapid Ash Survey Report and Management Options, Prepared for the Township of Ewing, Mercer County , NJ, By The Rapid Ash Survey Team (RAST) October 2015.)  As this invasive pest can easily spread to neighboring trees, all residents should check their ash trees for symptoms of infestation.

“The emerald ash borer will kill 99 percent of all ash trees within the next few years,” said Bill Brash, the NJ State Certified Tree Expert with whom the EGT has been working about the EAB threat to the municipal tree canopy. “Residents should identify ash trees on their property and monitor for signs of damage or decline such as unusual woodpecker activity or missing bark.”

EAB Facts

Since the discovery of emerald ash borer in Michigan in 2002, the beetle has killed hundreds of millions of ash trees in North America. In May 2014, the New Jersey Department of Agriculture confirmed New Jersey’s first detection of the emerald ash borer in Bridgewater in Somerset County, NJ.

The emerald ash borer is a small, metallic green, non-native invasive pest. Trees can be infested for years before the tree begins to show symptoms of infestation. Symptoms include canopy dieback, woodpecker activity, missing bark, D-shaped exit holes, shoots sprouting from the trunk, and S-shaped larval galleries under the bark.

Ash Tree Management

If a tree is already infested or in poor health, it may be best to remove the tree before it becomes infested and poses a hazard to people and surrounding structures. But for those residents with high-value ash in good health, trees can be treated before they become infested.

A Certified Tree Expert can help residents evaluate, then treat or remove ash trees. Contact the Board of Certified Tree Experts at 732-833-0325 or njtreeexperts@gmail.com for a list of professionals serving your area.

Report any signs. If any signs of the EAB beetle are found, call the New Jersey Department of Agriculture at 609-406-6939. Visit http://www.emeraldashborer.nj.gov for more information and check out our own EAB resource page.

untitled-5This program is being provided by the Ewing EAB Partnership, a coalition composed of Ewing Green Team  and Environmental Commission members and representatives from Mercer County, Rutgers University and PSE&G under the direction of NJ State Certified Tree Expert Bill Brash.  It is funded by a 2016 PSE&G grant Partnering for the Restoration of the Community Forest: The 3P Plan, Partnerships-Plan-Planting which funded development of partnerships  to manage the spread and removals of trees infected with the Emerald Ash Borer on Ewing municipal lands.

Date: Tuesday, March 20th
Time: 6:30 p.m.
Location: Ewing Senior and Community Center, 999 Lower Ferry Road, Ewing
Details:  Free and open to the public. No registration is required.
Additional Information: Contact EGT Co-Chair, Joanne Mullowney at 609-883-0862 or email: ewinggreenteam@gmail.com

Invasive Forest Pests and the Threats to our Forests

Watch this excellent video from the Cary Institute about the threats to the health of our forests from invasive pests and their suggestions about what we can do to halt them.

Kiss Your Ash Goodbye…


On February 16 at 6:30PM at Council Chambers in Ewing’s township offices, the Environmental Commission’s monthly meeting will be spent on learning more about the Emerald Ash Borer (EAB) threat to the health of our all our native ash trees.  This pest, first found in Michigan in 2002, reached New Jersey last year.  Without natural predators to destroy this pest, our entire ash population is at risk.

A Rutger’s Rapid Ash Survey of Ewing’s Ash trees on  public property last summer identified close to 900 Ash trees in parks, along roadsides and elsewhere and  concluded that the EAB was a real threat to Ewing’s tree canopy as Ash trees on public and private property were all going to be affected, and  soon.

To learn more about  the EAB threat, and possible remedies, the Environmental Commission has invited a number of people with specific  knowledge of the threat, and  how  it  might be addressed, to give informational presentations.


  • Bill Brash, NJ Certified Forester (former Executive Director of the Mercer County Soil Conservation District) helped Plainsboro address the issue last summer..
  • Dan Dobromilsky, Licensed Landscape Architect of West Windsor Township, who was key to their addressing the issue last summer.
  • Scott Tapp, Bartlett Tree Experts, which has developed and applied plans to remediate against the threat in this area.
  • Hasan Malik, Tree Authority LLC, a nursery owner who has been instrumental in the selection of trees to replace stricken Ashes.

We look forward to welcoming you to this informational meeting about the EAB threat to Ewing Township.

Ash Trees – the November 2015 Tree of the Month

ash_treeby Ann Farnham

Ash trees are ubiquitous in our town because they can grow almost anywhere; they may have been over-planted because of this robustness. They populate our yards, streets, golf courses, parks and woodlands. Exceptional as shade trees, they tolerate all kinds of conditions, and have beautiful fall foliage. These medium–to-fast growing trees range from Nova Scotia and Manitoba in the north and to North Florida and Texas in the south.

There are many species of Ash; our most common are White Ash (Fraxinus americana), and Green Ash (Fraxinus pennsylvanica). These two species are challenging to differentiate but suffer the same problems shared with all the Ashes: many fungal diseases and insect predation. Importantly, the recently introduced Emerald Ash Borer is emerging as the most serious pest afflicting Ash trees today. The White Ash in its native habitat is primarily a forest tree while Green Ash is mainly a riparian species.

Both species have compound leaves (usually 5 to 7 leaflets per leaf) which measure 8-15” long, arranged opposite each other on a stem. They are dark green in summer and the fall foliage ranges from bright yellow to maroon and deep purple. The bark is grey to grey-brown and mature trees have a furrowed, narrowly ridged diamond shaped texture. The flowers, which appear before the leaves in spring, are inconspicuous. The fruit, known as samaras, are profuse, flat, and measure 1” to 2” long.

Ash wood is dense and white. It is used for baseball bats, furniture, tool handles, and flooring, among other things which require strength and resilience.


Debbie Miller, USDA Forest Service, Bugwood.org

This fine and useful tree, however, seems doomed. The invasive Emerald Ash Borer (EAB) is killing ash trees throughout the North America in huge numbers. Many municipalities are taking down trees preventatively and at this time many thousands of these trees have been preemptively cut down or died from the EAB, which seems impossible to eliminate. The EAB was first introduced in Michigan from Asia in 2002 and has now migrated to the east coast. It has been spreading in Pennsylvania for the last few years and last year was found in New Jersey.

Green_ash_killed_by_Emerald_Ash_BorerA recent survey, conducted by Rutgers’ Urban Forestry Program found more than 840 Ash trees growing on Ewing public land within 10’ from sidewalks and trails alone. It is predicted that the Ash tree loss in Ewing will be enormous.

For more information and details about this pest, please check out our Emerald Ash Borer page.

The Ewing Environmental Commission welcomes suggestions for Trees and other Topics from all Ewing residents. To email suggestions or questions email us at eec@ewingnj.org.

To calculate the value that trees add to your property, go to treebenefits.com/calculator.